AS1 8.253.64.0/21 CIDR and IP Range Summary.ASN: 1 - Level 3 Parent LLCHost Count: 2046Addressable IPs: 20488.253.64.0/248.253.65.0/248.253.66.0/248.253.67.0/248.253.68.0/248.253.69.0/248.253.70.0/248.253.71.0/24